Dell has given an overview of what customers can expect from their initial Ubuntu offering. "The default software from the Ubuntu media will be installed on the system, including kernel and applications. The peripheral options offered with Ubuntu will be a subset of what is offered with other operating systems. We're offering the hardware options on each system that have the most mature and stable Linux driver support. These hardware options have been thoroughly tested by the Linux team here at Dell.
We configure/install open source drivers for hardware, when possible. We use partial open-source or closed source ('restricted' in Ubuntu terms) drivers where there is no equivalent open-source driver. This includes Intel wireless cards and Conexant modems."